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385299 (2001 UA181)
Classification: Main-belt Asteroid          SPK-ID: 2385299
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1850240248394885 9.3929e-08  
a 2.445886105697365 1.418e-08 au
q 1.993338414122256 2.3167e-07 au
i 2.083097866931956 1.0068e-05 deg
node 164.513460414459 0.00015635 deg
peri 225.4576606422789 0.0001594 deg
M 7.181778374169253 2.3445e-05 deg
tp 2459172.627092730199
(2020-Nov-19.12709273)
9.1016e-05 TDB
period 1397.181323948746
3.83
1.215e-05
3.326e-08
d
yr
n .2576616175934558 2.2406e-09 deg/d
Q 2.898433797272474 1.6803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      9977 days (27.32 yr)  
   first obs. used      1993-08-13  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:52  

Additional Information
 Earth MOID = .998027 au 
 Jupiter MOID = 2.54365 au 
 T_jup = 3.474 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.21   n/a MPCxxxxx  

385299 (2001 UA181)          Discovered 2001-Oct-25 by NEAT at Palomar
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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